I am in the process of creating an auto-response email when some from my program clicks on a certain URL on the landing page. How to ensure they will only get 1 auto-response email. I don't want them to get the autoresponder email everytime they click on the link where it becomes an annoyance. Is there a certain trigger that needs to be added? This is my first time setting up autoresponder email. Attached is the Flow setup as of now.